{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2483-4AA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2483-4AA1","canonicalUrl":"https://aoctrl.com/siemens/3RB2483-4AA1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2483-4AA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS electronic overload relay, 3RB2483-4AA1, 630 A rated operational current, IO-Link, adjustable trip class 5/10/20/30, 1 NO + 1 CO auxiliary contacts, screw terminals.","salesMarkdown":"The Siemens 3RB2483-4AA1 is a SIRIUS electronic overload relay rated for 630 A operational current, designed to protect three-phase motor circuits against overload, phase failure, and phase imbalance. It communicates via IO-Link, giving the controller access to motor current data, trip counters, and parameter sets without extra wiring. Trip class is field-adjustable among CLASS 5, 10, 20, and 30, so one relay covers fast-acting (CLASS 5 for short thermal time constants) through slow-start (CLASS 30 for high-inertia loads) without stocking multiple variants. The 630 A rated operational current (AC-1 / AC-3 per IEC 60947-4-1) sets the maximum continuous motor FLA the relay can pass. That rating places it squarely in large-motor territory — think 300 kW+ pumps or compressors on 400 V three-phase. The relay's size range S00..S12 means it mechanically mates with Siemens SIRIUS contactors in that same frame range; you're not adapting footprints. Auxiliary contacts: 1 NO + 1 CO, rated B300 / R300 per UL. That's enough for a standard trip-indication circuit plus a reset/status feedback to the PLC. The screw-type terminals on the control circuit accept 1x (0.5..4 mm²) or 2x (0.5..2.5 mm²) — solid or stranded — and 1x (20..12 AWG) for the auxiliary contact wiring. Surge voltage resistance rated at 4 kV, which is the standard impulse-withstand level for industrial control panels per IEC 60947-1. Fastened for stand-alone installation — no DIN-rail clip, so you bolt it directly to the panel backplate or mount it on a contactor via the SIRIUS system's direct-mount interface. Mounting position any orientation. Dimensions: 111 mm high, 45 mm wide, 95 mm deep — the 45 mm width is a single modular unit, so three of these side-by-side fit a 135 mm-wide backplate slot.","metaTitle":"Siemens 3RB2483-4AA1 SIRIUS Electronic Overload Relay, 630 A","metaDescription":"Siemens 3RB2483-4AA1 SIRIUS electronic overload relay, 630 A rated, IO-Link, adjustable trip class 5/10/20/30, 1 NO + 1 CO, active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Overload Relays"],"specifications":{"Depth":"95 mm","Width":"45 mm","Height":"111 mm","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","Per Pole":"0.17 W","at 125 V":"0.3 A","at 220 V":"0.2 A","at 230 V":"3 A","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 5, 10, 20 and 30 adjustable","At The Side":"6 mm","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"stand-alone installation","Mounting Position":"any","Solid Or Stranded":"1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Electronic overload relay for IO-Link","Size Of Overload Relay":"S00 ... S12","Substance Prohibitance (Date)":"05/28/2009","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"630 A","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"4 kV","at AWG cables for auxiliary contacts":"1x (20 ... 12), 2x (20 ... 14)","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","number of CO contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"15g / 11 ms","Size Of Contactor Can Be Combined Company-Specific":"S00 ... S12","contact rating of auxiliary contacts according to UL":"B300 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A","insulation voltage with degree of pollution 3 at AC rated value":"300 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","power loss [W] for rated value of the current at AC in hot operating state":"0.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.3 ... 630 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=173065&mlfb=3RB2483-4AA1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2483-4AA1/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings I need to verify fit?","answer":"Rated operational current: 630 A. Trip class: adjustable CLASS 5, 10, 20, 30. Auxiliary contacts: 1 NO + 1 CO (B300 / R300). Operating temperature: -25 to +60 °C. Dimensions: 111 x 45 x 95 mm (H x W x D)."},{"question":"What compliance documentation does Siemens provide for this relay?","answer":"The part carries a substance prohibitance date of 05/28/2009, indicating RoHS compliance per EU Directive 2011/65/EU (RoHS2). It is designed to meet IEC 60947-4-1 and UL 508. The reference code per IEC 81346-2 is F (protective device)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2483-4AA1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RB2483-4AA1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}